Method clear_header

python/python3/tornado/web.py:390–397

Clears an outgoing header, undoing a previous `set_header` call. Note that this method does not apply to multi-valued headers set by `add_header`.

(self, name: str)

        self._headers.add(name, self._convert_header_value(value))

    def clear_header(self, name: str) -> None:
        """Clears an outgoing header, undoing a previous `set_header` call.

        Note that this method does not apply to multi-valued headers
        set by `add_header`.
        """
        if name in self._headers:
            del self._headers[name]

    _INVALID_HEADER_CHAR_RE = re.compile(r"[\x00-\x1f]")